Svp quelqu’un pourrait m’aider à cet exo d’anglais

jane has just left, hasn't she ?  

peter bought a new car, didn't he ?

you didn't do the homework, did you ?

she is late, isn't she ?

you mother likes salad, doesn't she ?

comment expliquer ?

il y a un auxiliaire genre has ou do => il suffit de mettre le contraire

si do => don't si don't => do

pas d'auxilaire - juste un verbe - regarder son temps

bought => preterit => aux : did qui devient didn't

likes => present => aux : do qui devient don't mais 3 eme pers du sing => does => doesn't en tag

B and J live in NY

pas d'aux - juste un verbe live au present => aux : do => don't they ?

etc